Is there a pin-compatible replacement for CRCW04021M00FKED?

Yes, CRCW04021M00FKEDHP is a pin-compatible upgrade. Many other 1MΩ, 1%, 0402 resistors are form-fit compatible, but you must verify their power rating and temperature coefficient (TCR) before considering them pin-compatible for your specific circuit.

What risks should I check before replacing CRCW04021M00FKED?

Before replacing, you must check three key parameters: 1) Power Rating: Ensure the replacement's power rating is at least 0.063W. 2) Temperature Coefficient (TCR): Match the ±100 ppm/K rating for stability. 3) Qualification: If used in an automotive application, confirm the replacement is also AEC-Q200 qualified.

CRCW04021M00FKED Alternatives, Datasheet & Cross Reference | Vishay

The Vishay CRCW04021M00FKED is a 1MΩ, 1% tolerance, 0.063W thick film chip resistor in a 0402 package. It is AEC-Q200 qualified, making it suitable for automotive and industrial use where reliability is key.

AI replacement insight

Electrical riskmedium

Slight power rating downgrade in many alternatives requires design review.

Package risklow

0402 is a standard package with many form-fit compatible options.

Sourcing riskmedium

AEC-Q200 qualification may not be present on all alternatives, limiting use in automotive designs.

Can it be replaced directly?

Yes, CRCW04021M00FKEDHP is a pin-compatible upgrade. Other alternatives in the same 0402 package exist, but most have a slightly lower power rating of 0.0625W that requires engineering verification.

Best replacement path

The best replacement is CRCW04021M00FKEDHP, a higher-power version from the same manufacturer, which serves as a direct upgrade.

Main risk

The primary risk is substituting with a common 1/16W (0.0625W) resistor, which is a slight power downgrade from the target's 0.063W rating. This could impact reliability in applications operating near the power limit.

Recommended alternatives

A higher power (0.2W) version from the same manufacturer, offering a direct upgrade path with identical core parameters.

View details

Alternative comparison matrix

Feature / factor	CRCW04021M00FKED	CRCW04021M00FKEDHP	RTT021004BTH	CR-02FL6----1M	Compatibility / risk
Power	0.063 W	0.2 W	0.0625 W	0.0625 W	0.2 W / 0.0625 W — Candidate has a significantly higher power rating, a safe upgrade.; RTT021004BTH: Slightly lower power rating requires verification.; CR-02FL6----1M: Slightly lower power rating requires verification.
Resistance	1 MΩ	1 MΩ	1 MΩ	1 MΩ	1 MΩ — matched; RTT021004BTH: matched; CR-02FL6----1M: matched
Tolerance	±1%	±1%	±0.1%	±1%	±1% / ±0.1% — matched; RTT021004BTH: Candidate has significantly tighter tolerance.; CR-02FL6----1M: matched
Package	0402	0402	0402	0402	0402 — matched; RTT021004BTH: matched; CR-02FL6----1M: matched
Tcr	±100 ppm/K	±100 ppm/K	-	±100 ppm/°C	±100 ppm/K / ±100 ppm/°C — matched; CR-02FL6----1M: matched

Application & sourcing insights

Questions & answers

The best alternative is CRCW04021M00FKEDHP. It is made by the same manufacturer (Vishay) and offers a higher power rating (0.2W vs 0.063W) in the same 0402 package, making it a safe, direct upgrade.